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Other Financial Information
 6 Months Ended
Jun. 30, 2021
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Financial Information Other Financial Information
Other Current Assets

The following table presents details of other current assets reflected in our consolidated balance sheets:

June 30, 2021December 31, 2020
 (Dollars in millions)
Prepaid expenses$369 290 
Income tax receivable12 7 
Materials, supplies and inventory114 105 
Contract assets53 66 
Contract acquisition costs168 173 
Contract fulfillment costs118 114 
Other72 53 
Total other current assets$906 808